EP2292693B1 - Compositions de polycarbonate dotées d'une capacité de moulage améliorée - Google Patents

Compositions de polycarbonate dotées d'une capacité de moulage améliorée Download PDF

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Publication number
EP2292693B1
EP2292693B1 EP10191381.2A EP10191381A EP2292693B1 EP 2292693 B1 EP2292693 B1 EP 2292693B1 EP 10191381 A EP10191381 A EP 10191381A EP 2292693 B1 EP2292693 B1 EP 2292693B1
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EP
European Patent Office
Prior art keywords
polycarbonate
bis
copolymer
thermoplastic composition
mold release
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EP10191381.2A
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German (de)
English (en)
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EP2292693A1 (fr
Inventor
James Louis Derudder
Robert Puyenbroek
Andries Adriaan Volkers
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SABIC Global Technologies BV
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SABIC Innovative Plastics IP BV
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
    • C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L35/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical, and containing at least one other carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L35/06—Copolymers with vinyl aromatic monomers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
    • C08L25/02—Homopolymers or copolymers of hydrocarbons
    • C08L25/04—Homopolymers or copolymers of styrene
    • C08L25/08—Copolymers of styrene
    • C08L25/12—Copolymers of styrene with unsaturated nitriles
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/10—Block- or graft-copolymers containing polysiloxane sequences

Definitions

  • thermoplastic compositions comprising polycarbonates, as well as impact modified polycarbonate blends, having improved molding capability, a good flow and impact balance, and mold release.
  • the present invention also includes an article comprising any of the above thermoplastic compositions.
  • an article comprises the thermoplastic composition.
  • the article may be a molded article, such as an injection molded article or a blow molded article, or an extruded article, or other article as known in the art.
  • Branched polycarbonates are also useful, as well as blends comprising a linear polycarbonate and a branched polycarbonate.
  • the branched polycarbonates may be prepared by adding a branching agent during polymerization, for example a polyfunctional organic compound containing at least three functional groups selected from hydroxyl, carboxyl, carboxylic anhydride, haloformyl, and mixtures of the foregoing functional groups.
  • Such copolymers further contain, in addition to recurring carbonate chain units of the formula (1), repeating units of formula (6) wherein E is a divalent radical derived from a dihydroxy compound, and may be, for example, a C 2-10 alkylene radical, a C 6-20 alicyclic radical, a C 6-20 aromatic radical or a polyoxyalkylene radical in which the alkylene groups contain 2 to about 6 carbon atoms, specifically 2, 3, or 4 carbon atoms; and T divalent radical derived from a dicarboxylic acid, and may be, for example, a C 2-10 alkylene radical, a C 6-20 alicyclic radical, a C 6-20 alkyl aromatic radical, or a C 6-20 aromatic radical.
  • E is a divalent radical derived from a dihydroxy compound, and may be, for example, a C 2-10 alkylene radical, a C 6-20 alicyclic radical, a C 6-20 aromatic radical or a polyoxyalkylene radical in which the alkylene groups contain 2
  • aromatic dicarboxylic acids that may be used to prepare the polyesters include isophthalic or terephthalic acid, 1,2-di(p-carboxyphenyl)ethane, 4,4'-dicarboxydiphenyl ether, 4,4'-bisbenzoic acid, and mixtures comprising at least one of the foregoing acids. Acids containing fused rings can also be present, such as in 1,4-, 1,5-, or 2,6-naphthalenedicarboxylic acids. Specific dicarboxylic acids are terephthalic acid, isophthalic acid, naphthalene dicarboxylic acid, cyclohexane dicarboxylic acid, or mixtures thereof.
  • the polycarbonate-polysiloxane copolymer may be manufactured by reaction of diphenolic polysiloxane (14) with a carbonate source and a dihydroxy aromatic compound of formula (3), optionally in the presence of a phase transfer catalyst as described above. Suitable conditions are similar to those useful in forming polycarbonates.
  • the copolymers are prepared by phosgenation, at temperatures from below 0°C to about 100°C, preferably about 25°C to about 50°C. Since the reaction is exothermic, the rate of phosgene addition may be used to control the reaction temperature. The amount of phosgene required will generally depend upon the amount of the dihydric reactants.
  • the amount of dihydroxy polydiorganosiloxane is selected so as to provide the desired amount of polydiorganosiloxane units in the copolymer.
  • the amount of polydiorganosiloxane units may vary widely, that is, may be about 1 wt.% to about 99 wt.% of polydimethylsiloxane, or an equivalent molar amount of another polydiorganosiloxane, with the balance being carbonate units.
  • a combination of three different mold release agents is used to provide optimal molding capability.
  • Such combination of mold releases comprises pentaerythritol tetrastearate, a poly-alpha-olefin, and a polyethylene oxide/polypropylene oxide block copolymer.
  • the mold release agents are present in equal amounts. In other embodiments, the mold release agents are present in different amounts.
  • Pigments may be coated to prevent reactions with the matrix or may be chemically passivated to neutralize catalytic degradation site that might promote hydrolytic or thermal degradation. Pigments are generally used in amounts of about 0.01 to about 10 parts by weight, based on 100 parts by weight of the thermoplastic composition.
  • Two of the G groups may be joined together to provide a cyclic group, for example, diphenyl pentaerythritol diphosphate, which is described by Axelrod in U.S. Pat. No. 4,154,775 .
  • Halogenated materials may also be used as flame retardants, for example halogenated compounds and resins of the formula (18): wherein R is an alkylene, alkylidene or cycloaliphatic linkage, such as methylene, propylene, isopropylidene, cyclohexylene, cyclopentylidene, and others; an oxygen ether, carbonyl, amine, or a sulfur containing linkage, such as, sulfide, sulfoxide, sulfone, and others; or two or more alkylene or alkylidene linkages connected by such groups as aromatic, amino, ether, carbonyl, sulfide, sulfoxide, sulfone, and other groups; Ar and Ar 1 are each independently a mono- or polycarbocyclic aromatic group such as phenylene, biphenylene, terphenylene, naphthylene, and others, wherein hydroxyl and Y substituents on Ar and Ar' can be

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Claims (4)

  1. Composition thermoplastique comprenant :
    un polycarbonate, et
    un total de 1 à 3 % en poids, sur la base de 100 % en poids du polycarbonate, d'une combinaison d'au moins trois additifs de démoulage différents comprenant du tétrastéarate de pentaérythrityle, un poly-alpha-oléfine, et un copolymère séquencé de polyoxyde d'éthylène/polyoxyde de propylène,
    dans laquelle un échantillon moulé de la composition thermoplastique a une pression d'éjection du moule plus faible que la même composition thermoplastique sans les trois additifs de démoulage.
  2. Composition thermoplastique selon la revendication 1, comprenant en outre un additif ignifuge.
  3. Composition thermoplastique selon l'une quelconque des revendications précédentes, dans laquelle les additifs de démoulage sont présents chacun en des quantités égales.
  4. Article comprenant la composition thermoplastique de l'une quelconque des revendications précédentes.
EP10191381.2A 2007-07-31 2008-07-08 Compositions de polycarbonate dotées d'une capacité de moulage améliorée Active EP2292693B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US95312707P 2007-07-31 2007-07-31
US12/129,957 US7723428B2 (en) 2007-07-31 2008-05-30 Polycarbonate compositions with improved molding capability
EP08781491A EP2173807A1 (fr) 2007-07-31 2008-07-08 Compositions de polycarbonate avec une capacité de moulage améliorée

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP08781491A Division EP2173807A1 (fr) 2007-07-31 2008-07-08 Compositions de polycarbonate avec une capacité de moulage améliorée
EP08781491.9 Division 2008-07-08

Publications (2)

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EP2292693A1 EP2292693A1 (fr) 2011-03-09
EP2292693B1 true EP2292693B1 (fr) 2014-12-17

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EP10191381.2A Active EP2292693B1 (fr) 2007-07-31 2008-07-08 Compositions de polycarbonate dotées d'une capacité de moulage améliorée
EP08781491A Withdrawn EP2173807A1 (fr) 2007-07-31 2008-07-08 Compositions de polycarbonate avec une capacité de moulage améliorée

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Country Status (6)

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US (1) US7723428B2 (fr)
EP (2) EP2292693B1 (fr)
KR (1) KR101511345B1 (fr)
CN (1) CN101809085B (fr)
TW (1) TWI391444B (fr)
WO (1) WO2009017938A1 (fr)

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Also Published As

Publication number Publication date
KR20100040946A (ko) 2010-04-21
TW200923010A (en) 2009-06-01
KR101511345B1 (ko) 2015-04-10
CN101809085B (zh) 2013-11-20
TWI391444B (zh) 2013-04-01
US20090036593A1 (en) 2009-02-05
EP2292693A1 (fr) 2011-03-09
US7723428B2 (en) 2010-05-25
CN101809085A (zh) 2010-08-18
EP2173807A1 (fr) 2010-04-14
WO2009017938A1 (fr) 2009-02-05

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